<template>
	<view>
		<view class="search-box">
			<uni-search-bar text-color="#000" @input="input" :focus="true" :radius="100" cancelButton="none"></uni-search-bar>
		</view>
		<!-- 搜索建议列表 -->
		<view class="sugg-list" v-if="searchList.length !== 0">
			<view @click="gotoNewPages(item)" class="sugg-item" v-for="(item,index) in searchList" :key="index" >
				<view class="goods-name">
					{{item.goods_name}}
				</view>
				<uni-icons type="arrowright" size="16"></uni-icons>
			</view>
		</view>
		
		<!-- 搜索历史 -->
		<view class="history-box" v-else>
			<view class="history-title">
				<text>搜索历史</text>
				<uni-icons @click="clean" type="trash" size="17"></uni-icons>
			</view>
			<!-- 列表区域 -->
			<view class="history-list">
				<uni-tag @click="gotoGoodList(item)" :inverted="true" class="uni-tag" :text="item" v-for="(item,index) in historys" :key="index"></uni-tag>
			</view>
		</view>
	</view>
</template>

<script>
	import badgeMixin from '@/mixins/tabber-badge.js'
	export default {
		mixins:[badgeMixin],
		data() {
			return {
				timer:null,
				kw:'',
				searchList:[],
				historyList:[]
			}
		},
		onLoad(){
			this.historyList = JSON.parse(uni.getStorageSync('kw') || [])
		},	
		computed:{
			historys(){
				return [...this.historyList].reverse()
			}
		},
		methods:{
			async getSearchkw(){
				if(!this.kw) {
					this.searchList = []
					return
				}
				const {data:res} = await uni.$http.get('/api/public/v1/goods/qsearch',{query:this.kw})
				// console.log(res);
				if(res.meta.status !== 200) return uni.$showMsg()
				this.searchList = res.message
				this.savaSearchHistory()
			},
			input(e){
				clearTimeout(this.timer)
				this.timer = setTimeout(()=>{
					this.kw = e
					this.getSearchkw()
				},500)
			},
			gotoNewPages(item){
				uni.navigateTo({
					url:'/subpkg/goods_detail/goods_detail?goods_id='+item.goods_id
				})
			},
			savaSearchHistory(){
				const set = new Set(this.historyList)
				set.delete(this.kw)
				set.add(this.kw)
				this.historyList = Array.from(set)
				// 持久化存储
				uni.setStorageSync('kw',JSON.stringify(this.historyList))
			},
			clean() {
				this.historyList = []
				uni.removeStorageSync('kw')
			},
			gotoGoodList(item) {
				uni.navigateTo({
					url:'/subpkg/goods_list/goods_list?query='+item
				})
			}
		}
	}
</script>

<style lang="scss">
.search-box {
	position: sticky;
	top: 0;
	z-index: 999;
}
.sugg-list {
	padding: 0px 5px;
}
.sugg-item {
	display: flex;
	justify-content: space-between;
	align-items: center;
	font-size: 12px;
	padding: 13px 0;
	border-bottom: 1px solid #efefef;
}
.goods-name {
	white-space: nowrap;
	overflow: hidden;
	text-overflow: ellipsis;
	margin-right: 3px;
}
.history-box {
	padding: 0 5px;
	.history-title{
		height: 40px;
		display: flex;
		justify-content: space-between;
		align-items: center;
		font-size: 13px;
		border-bottom: 1px solid #efefef;
	}
	.history-list{
		display: flex;
		.uni-tag {
			margin-top: 5px;
			margin-right: 5px;
		}
	}
}
</style>